Adjustable peep sight for firearms



NOV. 17, 1936. T, R ARDEN 2,061,017

ADJUSTABLE PEEP SIGHT FOR FIREARMS Filed Nov. 25, 1935 2 Sheets-Sheet 1/fzyemor Mamas ff Arde):

ULUWH'. i lbHL IND! numLw son Nov. 17,. 1936.

T. R. ARDEN ADJUSTABLE PEEP SIG'HT FOR FIREARMS v Filed Nov. 25, 1935` 2Sheets-Sheet 2 33. GEIVETRICL lNSlHUMtN l5.

Patented Nov. 17, 1936 UNI-TED STATES @ddl Uil ADJUSTABLE PEEP SIGHT FORFIREARMS Thomas R. Arden, Baldwin, N. Y.

Application November 25, 1935, Serial No. 51,426

4 Claims.

This invention relates to improvements in adjustable peep-sights foriirearms.

One object of this invention is to provide an improved adjustablepeep-sight for firearms adapted to provide different size peep-sightopenings while maintaining, with certainty, a constant single axis ofthe various size sight-openings.

Another object of this invention is to provide an improved adjustablepeep-sight adapted to be adjusted smoothly and continuously from thelargestjo...thesmallestsiaaQLQpengi/ade versa, without the necessity ofany sudden variations in sizes of openings.

Another object of this invention is to provide an improved peep-sightformed of simple elements readily manufactured and readily assembled toproduce a durable efcient construction at minimum cost.

With the above and other objects in view, this invention includes allimprovements over the prior art which are disclosed in this application.

In the accompanying drawings, in which one way of carrying out theinvention is shown for illustrative purposes:

Fig. 1 is a side elevation of a gun-receiver having a peep-sight made inaccordance with this invention, mounted thereon;

Fig. 2 is an enlarged rear elevation of the improved peep-sight takenfrom the left end of Fig. 1;

Fig. 3 is mainly a rear elevation with the flange of the operating-ringin central transverse section;

Fig. 4 is a view similar to Fig. 3, but with the flange of one of thecup-like operating-disks also in section, the iris-leaves and otherparts being in elevation;

Fig. 5 is a View similar to Fig. 4, but with the sight adjusted tomaximum open position;

Fig. 6 is an enlarged sectional view on line 6-6 of Fig. 2;

Fig. 7 is an enlarged sectional View on line 1-1 of Fig. 2;

Fig. 8 is a perspective view of the peep-sight body;

Fig. 9 is a perspective view of the operating ring;

Fig. 10 is a perspective view of one of the operating-disks;

Fig. 11 is a perspective view of the other operating-disk; and

Fig. 12 is a perspective View of one of the irisleaves.

In the description and claims, the various parts are identified byspecific names for convenience,

but they are intended to be as generic in their application as the priorart will permit.

Referring to the drawings, the firearm-receiver 20 has a sight-support,generally designated by the numeral 2|, and upstanding from one side of5 the firearm-receiver as indicated in Fig. 1. Carried by thesight-support 2| is a cross-bar 22, in which is adjustably mounted across-slide 23 having an internally-threaded opening 24. The peep-sight25 includes a body-member 26 includ- 10 ing a boss 21 and anexternally-threaded tubular stem 28, which threadedly engages in thethreaded opening 24, with the stop-shoulder 29 of the boss 21 engagedagainst the cross-bar 22. The body-member 26 and the tubular stem 28 15have a sight-passage or sight-opening 30 extending therethrough and thebody-member has anl enlarged annular flange 3| provided withdiagonally-opposite slots 32 and 33.

34 is a peep-sight assembled unit consisting of 20 two intertting,shallow, cup-like operating-disks 35 and 36 with six leaves 31 formingan iris and located between the disks 35 and 36. The disk 35 has acentral sight-aperture or opening 38 and six operating-slots 39extending through the disk. 25 The disk 36 has a central sight-apertureor opening 40 and six operating-slots 4I extending through the disk. Thedisk 36 also has two diagonally-opposite arcuate slots 42 and 43.

It will be noted that the slots 4l of disk 36 are 30 approximatelyradial, while the slots 39 of the disk 35 are arranged approximately atright angles to radial and to the slots 4l. Each iris-leaf 31 (Fig. 12)is formed of thin sheet-metal of elongated form and has one end 44 benttrans- 35 versely approximately at right angles to the body of the leaf,and has the other end 45 bent transversely of the body in the oppositedirection approximately at right angles to the body of the leaf andapproximately at right angles to the 40 other bent end 44.

In forming the peep-sight unit 34, six leaves may be placed in the disk36 with the bent ends 44 of the leaves extending through theoperatingopenings or slots 4I and with the bent ends 45 45 arranged inposition to register with operatingopenings or slots 39 of disk 35.Thereupon, the disk 35 is brought into position to cause the slots 39 toengage over the bent ends 45 and with the annular flange 46 of disk 35fitting within 50 the annular flange 41 of disk 36, and with the lugs 48and 49 (occupying their dotted-line positions 48a, 49a) of disk 35extending through the arcuate slots 42 and 43, whereupon the lugs 48 and49 are bent from their dotted-line positions 55 i EMU! 48a and 49a totheir full-line positions 48 and 49, thus holding the two disks 35 and36 and the six leaves 31 all assembled together as a unit. The assembledunit can then be assembled in the complete peep-sight by engaging thelugs 50, 5| of the disk 36 in the slots 32, 33 in the flange 3| of thebody-member 26. The operating-ring 52 preferably has its outer surfaceknurled and is provided with interior slots 53, 54 and a sightapertureor opening 55. The operating-ring 52 is assembled over the flange 3| ofthe bodymember 26 and rotated until the slots 53 and 54 engage with thelugs 48 and 49 of disk 35. Or, the unit 34 can be assembled in thepeep-sight in reverse position with the lugs 50, 5| in the slots 53, 54and with the lugs 48, 49 in the slots 32, 33. The surface 56 of theoperating-ring engages against the end face of ange 3| to limit thetelescopic engagement of the parts 52 and 3| to form a bearing surfacefor the relative rotation of them. The annular edge 51 of theoperatingring 52 is spun or flanged over into Contact with the chamferedsurface 58 of the body-member 26 to hold parts 52 and 26 in assembledrotary relation.

When the operating-ring 52 is rotated anticlockwise, the iris-leaves arecaused to swing toward the axis of the sight-opening to provide thesmallest opening to which the sight can be adjusted', such, for example,as is illustrated in Figs. 2, 3, and 4. When the operating-ring 52 isrotated clockwise, the leaves 3l are caused to swing outwardly away fromthe axis of the sightopening to their maximum open position, such asillustrated in Fig. 5.

It will thus be seen that a peep-sight constructed in accordance withthis invention permits of readily varying the sight-opening slowly orquickly and continuously to any desired size of opening within its rangeof adjustment, and without shifting the axis of the opening. In otherwords, this sight can be adjusted from the smallest to the largestopening while the person is looking through the sight, and withoutobstructing sight through the sight-passage.

The device may be made of any suitable materials and the disks andleaves will preferably be made of non-rusting material, such, forexample, as sheet-brass or other suitable non-rusting sheet-material. Anembodiment of the peepsight illustrated in the drawings has beenconstructed with the operating-ring of outside diameter and with theleaves made of sheetmetal having a thickness of between .005 and .006".This peep-sight can be adjusted to give a sight-opening considerablysmaller than gli" diameter.

The invention may be carried out in other specic ways than that hereinset forth without departing from the spirit and essentialcharacteristics of the invention, and the present embodiment istherefore to be considered in all respects as illustrative and notrestrictive, and all changes coming within the meaning and equivalencyrange of the appended claims are intended to be embraced therein.

I claim:

1. An adjustable peep-sight construction for firearms comprising: a pairof intertting cuplike operating-disks assembled together with theircup-openings toward each other for limited rotation relative to oneanother on a common axis and each disk having a sight-opening coaxial ofsaid common axis and a plurality of operatingopenings spacedconcentrically about the axis of the sight-openings; a plurality ofelongated leaves between said disks and arranged in overlapping relationabout the axis of the sightopenings; each leaf having one end benttransversely of its body and engaged with a respective operating-openingof one disk, and the other end bent transversely of its body in theopposite direction and engaged with a respective operating-opening ofthe other disk.

2. An adjustable peep-sight construction for rearms comprising: a pairof operating-disks assembled together for limited rotation relative toone another on a common axis and each disk having a sight-openingcoaxial of said common axis, and a plurality of operating-slots spacedconcentrically about the axis of the sight-openings, the slots in onedisk being approximately radial of said openings and the slots in theother disk being approximately at right angles to radial; a plurality ofelongated leaves between said disks and arranged in overlapping relationabout the axis of the sight-openings; each leaf having one end benttransversely of its body andengaged with a respective operating-slot forone disk, and the other end bent transversely of its body in theopposite direction and approximately at right angles to the other bentend and engaged with a respective o-perating-slot of the other disk.

3. An adjustable peep-sight construction for firearms comprising: a pairof sheet-metal operating-disks secured together in assembled relationfor limited rotation relative to one another on a common axis by meansof a pair of slots and a pair of tongues formed in the disks, and thetongues interengaging with the slots; each disk having a sight-openingcoaxial of said common axis, and a plurality of operating-openingsspaced concentrically about the axis of the sightopenings; and aplurality of elongated leaves between said disks and arranged inoverlapping relation about said axis; each leaf having one end engagedwith a respective operating-opening of one disk, and the other endengaged with a respective operating-opening of the other disk.

4. An adjustable peep-sight construction for firearms comprising: a baseand a cover providing a housing-space and having coaxial sightopenings;a pair of sheet-metal operating-disks in said housing-space and securedtogether in assembled relation for limited rotation relative to oneanother on a common axis with said sight-openings by means of a pair ofslots and a pair of tongues formed in the disks, and the tonguesinterengaging with the slots; each disk having a sight-opening coaxialof said common axis, and a plurality of operating-openings spacedconcentrically about the axis of the sight-openings; and a plurality ofelongated leaves between said disks and arranged in overlapping relationabout said axis; each leaf having one end engaged with a respectiveoperating-opening of one disk, and the other end engaged with arespective operating-opening of the other disk THOMAS R. ARDEN.

